31457580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{619}}^1$

素因数の和:660

約数の個数: 144

約数和(自身を含む): 110826240

約数和(自身を除く): 79368660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 619, 660, 726, 770, 847, 924, 1155, 1210, 1238, 1452, 1540, 1694, 1815, 1857, 2310, 2420, 2476, 2541, 3095, 3388, 3630, 3714, 4235, 4333, 4620, 5082, 6190, 6809, 7260, 7428, 8470, 8666, 9285, 10164, 12380, 12705, 12999, 13618, 16940, 17332, 18570, 20427, 21665, 25410, 25998, 27236, 34045, 37140, 40854, 43330, 47663, 50820, 51996, 64995, 68090, 74899, 81708, 86660, 95326, 102135, 129990, 136180, 142989, 149798, 190652, 204270, 224697, 238315, 259980, 285978, 299596, 374495, 408540, 449394, 476630, 524293, 571956, 714945, 748990, 898788, 953260, 1048586, 1123485, 1429890, 1497980, 1572879, 2097172, 2246970, 2621465, 2859780, 3145758, 4493940, 5242930, 6291516, 7864395, 10485860, 15728790, 31457580]

約数ペア:

[(1, 31457580), (2, 15728790), (3, 10485860), (4, 7864395), (5, 6291516), (6, 5242930), (7, 4493940), (10, 3145758), (11, 2859780), (12, 2621465), (14, 2246970), (15, 2097172), (20, 1572879), (21, 1497980), (22, 1429890), (28, 1123485), (30, 1048586), (33, 953260), (35, 898788), (42, 748990), (44, 714945), (55, 571956), (60, 524293), (66, 476630), (70, 449394), (77, 408540), (84, 374495), (105, 299596), (110, 285978), (121, 259980), (132, 238315), (140, 224697), (154, 204270), (165, 190652), (210, 149798), (220, 142989), (231, 136180), (242, 129990), (308, 102135), (330, 95326), (363, 86660), (385, 81708), (420, 74899), (462, 68090), (484, 64995), (605, 51996), (619, 50820), (660, 47663), (726, 43330), (770, 40854), (847, 37140), (924, 34045), (1155, 27236), (1210, 25998), (1238, 25410), (1452, 21665), (1540, 20427), (1694, 18570), (1815, 17332), (1857, 16940), (2310, 13618), (2420, 12999), (2476, 12705), (2541, 12380), (3095, 10164), (3388, 9285), (3630, 8666), (3714, 8470), (4235, 7428), (4333, 7260), (4620, 6809), (5082, 6190)]